Lopez, N. d. L. (1988). The values professed and practiced by public and private secondary school teachers and administrators Pangasinan, 1987-1988.
Chicago Style (17. basım) AtıfLopez, Natividad de Leon. The Values Professed and Practiced by Public and Private Secondary School Teachers and Administrators Pangasinan, 1987-1988. 1988.
MLA (9th ed.) AtıfLopez, Natividad de Leon. The Values Professed and Practiced by Public and Private Secondary School Teachers and Administrators Pangasinan, 1987-1988. 1988.
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